ascetic_ddd.seedwork.domain.values.money.sum¶

Classes

class ascetic_ddd.seedwork.domain.values.money.sum.Sum(augend, addend)[source]¶

Bases: Expression

Represents the sum of two monetary expressions.

This class enables complex expressions like (5 USD + 10 CHF) + 20 EUR to be built up and then reduced to a single currency when needed.

Parameters:¶

augend : Expression¶

addend : Expression¶

reduce(bank, to)[source]¶

Reduce this Sum to a Money object in the target currency.

This reduces both operands to the target currency and adds them.

Parameters:¶

bank¶

The bank to use for currency conversion

to¶

The target currency code

Return type:¶

Money

Returns:¶

Money object representing the sum in the target currency

plus(addend)[source]¶

Add another expression to this Sum.

Parameters:¶

addend¶

The expression to add

Return type:¶

Expression

Returns:¶

A new Sum expression

times(multiplier)[source]¶

Multiply this Sum by a scalar.

This distributes the multiplication: (a + b) * n = a*n + b*n

Parameters:¶

multiplier¶

The multiplier

Return type:¶

Expression

Returns:¶

A new Sum expression with both operands multiplied